|If programs are running slow, it may be because the computer's hard disk cannot access the data you want fast enough. In this case, you need to defragment the disk to speed the machine back up to working order:|
Go to Start, then click Run. You can either:
1) Type in dfrg.msc and press Enter. Then click the Defrag button.
2) Or, you can type in cmd, press Enter, then type defrag C:.
Either of these will defrag the hard disk, and get your programs running satisfactorily. Hope this helps solve the slow solitaire problem. :)