windowxp effect button not work

[rks]

In windowxp effect button not functioning properly which situated in display properties-Appearence Tab some days ago it will work properly but now not work how do i solve this
I have windowxp professional with sp-1, directx-9, piii-500,128mb ram, intel se440bx2 mother board, sis8mb display

[chance]

128 megs of ram is not enough to run advanced options on xp, although this may not be causing the problem you speak of. windows xp runs ok on 256 megs, runs great on anything above. 128 will run xp if you select to run in best performance mode( looks like windows 95) but runs "OK".