Mouse is erratice and think Im Infected with trojan

Good Day..

I am looking for some help once again... it seems a ghost has entered the machine and I need to get rid of it. Any help you can provide would be greatly appreciated.

I seem to have a problem that I can not solve.. It seems that everyonce in a while when using the mouse it

seems to go erratic and suddenly move to the top or bottom of the monitor... all by it self...
I gave also notice that when I do virus and trojan scans I seem to get a lot of hits with such things as tribalfusion???, get the linkgrabber99, harvester 2.301, I even got a hit jsut now when doing some cleaning up befor running HIJaak this of the CWS.MSConfig (when running CWShredder).

I have ran all of the required programs that you have stated that need to be run. I ran the windows defender AFTER I rebooted into normal mode and connected the cable. This ran and no harmful software was found.

My System:
COMputer OP System is MS Media Edition w/ SP 2
Internet Explorer v6.0.2900.2180
AMD CPU Athon 64 Processor 3200+
Award Bios 10/27/05 v6.00PG
Video Adapter NVIDIA GeForce TurboCache (128) Video Bios 1/28/05
Monitor SyncMaster 198T/910T SyncMaster Magic CX901T (Analog)
Audio Adapter Realtek AC'97 [NoDB]
Floppy

Mother Board: Gigabyte Tech GA-K8NF-9 BUS Type AMD Hammer

Memory:
1023 MB
Used 502MB
Free 502MB

Swap Space
Total 2460 MB
Used 465 MB
Free 1995 MB

NetWork:
NVDIA nForce Network Controller

Printer HP 2410 AIO
NP PSC 2450 USB Device

Storage:
Hard Drive WD 16 00JB-00DUA0 SCSI Disk Device
Hard Drive WD 20 00JB-00GVA0 SCSI Disk Device
Hard Drive WDC WD800JD-00LUA0

Optical Drives:
ATAPI 52X CDROM
AXV CD/DVD-ROM SCSI CdRom Device (Virtual DVD-ROM)
CD-ROM Drive
DVDRW 16X16X
FvF-inc CDDVD-2003-200x SCSI CDRom Device
Plextor CD-R PX-W4012A USB Device

Any help you can provide is greatly appreciated....

 

First ...I want thank you for your help in this....

Ewido is a paid version. spyware Dr is a trial
As for the mouse problem... it is an optical mouse.... On close exam... it seems that there is ...strike that... there was a small piece of paper floating around in front of the hole / eye. Had to shake up the mouse for the paper to appear and that is prob why the errratic mouse and whyy I didnt see... it was hiding half of the time.... I have just removed it and that solved the problem... apparently the paper was interfering with the optics and this "cleaning " resolved that problem...

Ill dump the Spyware Dr

Im off to Step 11 "How to protect yourself from malware."

I want to again thank you for your help in this matter and putting my mind at ease...... I was worried about the eratic mouse movement and was thinking I got infected....