Please help w/ super slow comp - Logs attached

Note - I already posted this issue in the Malware section, however I'm not sure if it's malware related so I figured this may be a more appropriate home for this thread.

Hello all! Thanks in advance for any help you are able to provide.

Within the last 6 or 7 days my laptop has begun exhibiting the following symptoms:

* Startup takes an extremely long time (sometimes nearly 10 minutes for everything to finish loading, and the only things loading at startup that I know of are Zone Alarm Pro, SuperAntiSpyware and Eset Nod32 Antivirus) and the Windows XP theme music skips on startup as if the CPU is straining
* Shutdown takes an extremely long time and error messages appear requiring me to manually close certain processes before the computer can shut down
* The computer is not capable of playing music or video files as they skip horribly, making them unwatchable.
* The computer just runs slowly in general, as if the CPU is being overworked.


I don't remember specifically downloading anything before the onset of these issues. The computer is mainly used for homework (Excel, Word, Microsoft Project, Google Earth, Google Sketchup, etc.), personal computing (surfing the internet, email, listening to music, watching movies) and light music production (FL Studio 8). I know the system isn't exactly a powerhouse, however I had never experienced any of these symptoms before this last week. I have gone through all the steps in the Malware Removal Guide, as well as the corresponding steps in the Windows XP Cleaning Procedure, however it did not resolve my issues. My logs are attached, and my system stats can be found below. Thanks again for any help!

Dell Latitude D800
MS Windows XP Professional SP3
Intel Pentium M Processor 1.80GHz, 1.0GB RAM, NVIDIA GeForce FX Go5200

 

Please see attached for my MGlogs.zip file.

Thanks!