SVCHOST.exe.mdmp issues

Hi guys

I've seached and posted in here because it seems i have similar issues to other posts but not quite the same

Now i'm not 100% pc savy so be gentle please

OK here goes

PC will run for a few hours and then i get a box up saying "Generic Host Process for Win32 services has encountered a problem and will be shut"

Now if i close that box my PC is effectivley dead, i cant click on anything sound goes and my taskbar changes from dark blue to a light beige and box colours seem to be inverted.

Now have figured out today that as long as i don't close that box my PC will continue to run

I cant find any txt files to copy showing error logs, even though it give me a path

Here are some of the details i can snag

szAppName : svchost.exe szAppVer : 5.1.2600.5512 szModName : ntdll.dll
szModVer : 5.1.2600.5755 offset : 00023845

and the paths
C:\DOCUME~1\Owner\LOCALS~1\Temp\WER1bce.dir00\svchost.exe.mdmp
C:\DOCUME~1\Owner\LOCALS~1\Temp\WER1bce.dir00\appcompat.txt

Cant locate the .TXT file

I have full paid verion of AVG all uptodate running and shows no virus or spyware

I've used malwarebytes to scan and i'll post the logs below, had to copy as cant fing where its saved them!

Malwarebytes' Anti-Malware 1.46
www.malwarebytes.org

Database version: 4733

Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702

02/10/2010 18:03:56
mbam-log-2010-10-02 (18-03-56).txt

Scan type: Quick scan
Objects scanned: 157429
Time elapsed: 10 minute(s), 19 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 1
Registry Values Infected: 0
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 0

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSSMGR (Trojan.Downloader) -> Quarantined and deleted successfully.

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)

2nd log was clear
Malwarebytes' Anti-Malware 1.46
www.malwarebytes.org

Database version: 4733

Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702

03/10/2010 16:27:51
mbam-log-2010-10-03 (16-27-51).txt

Scan type: Full scan (C:\|D:\|E:\|F:\|)
Objects scanned: 384891
Time elapsed: 1 hour(s), 48 minute(s), 23 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 0
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 0

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)


I'm clueless as what to do next other than reformat!

I'm sure i've missed some vital info off so if you can help please let me know and i'll post up asap as this is now doing my head in

Cheers

 

Also i have noticed i get a solid black bar going across the top of IE under the web addy box!

i get Error number: 0x80072EFE when i try to update windows components, i have folled MS fix's for this with no joy

I'm runing windows xp home

 

Have found another issue, PC will play some system sounds, but i cant listen to music or hear video!