photo explosion not opening

[the_blonde_lady]

i have a 2 yr old hp laptop pavillion, my program "photo explosion by nova" will no longer open when i click on it, i uninstalled and reinstalled it, also, my msn messenger 7.5 keeps closing after i open it, my other photo program called mgi photosuite works fine. also, when i set the scandisc to scan after i restart the pc----it no longer scans at start up, i have these 3 problems that are new, i recently had the pc formatted. can anyone help me? thanks soo much

[whodat]

welcome
what anti virus do you have installed?

if you have a xp disk, or you can borrow one, try this:

run the system file checker = put in your windows disk

go to the run box on the start menu and type in:

sfc /scannow ( sfc if not recognized ) [ space between c and / ]

hit enter