I think pboost has an issue with XP / 2000 and NT systems if they are installed on FAT32 file systems, Im pretty sure I read that there is a update being developed to overcome this tho. If you do a search in the freestuff section here for 'pboost' you should find the compatibility tester, if you download and run this it will tell you wether pboost is currently compatable with your system. I think what cruzin is refering to is you can create a 'runtime' folder anywere on your PC (in his case on his second 120gig hard drive) and then within P5 you can add this as another runtime folder which P5 can access. Hope this all helps some Cheers Kurgen