I am currently having problems with my page file. When my computer starts and I look at task manager PF Usage is around 200-300MB when my programs finish starting its over 2GB! I have found that if I exit 2 of the running programs the page file will go back down to 300+MB. The two programs I have been troubleshooting with are Google's Desktop Sidebar and Feedreader 3.05. Not Huge programs. Googles sidebar will eat about 1.5GB of page file when started. I do not have this problem with the same apps on other computers. Also if I look at the running processes in task manager it does not display these programs using any more than 60MB of memory.
Troubleshooting steps I have taken: Attempted to clear the page file by setting the system to no pagefile and rebooting. Supposed to delete pagefile.sys at this point but could not find it. I did have explorer set to show hidden files and protected OS files. Set the page file back up again for 1.5 times the amount or RAM.
Ran spyware checks
Re-installed XP SP2
Deleted loads of data off the HD, Defraged
Re-installed chipset drivers
Removed and re-installed IDE Drivers
Dell Latitude D810 1GB Memory
Pagefile set on C: Drive Custom Size: 1536-3000MB