NT4.0 errors?

[Kim]

While trying to open a program, I get a message to
reboot/reload? NT4.0 and try again. What's this & how to
I fix it? I use XP Home Edition. Thanks!

 

[Shenan Stanley]

While trying to open a program, I get a message to
reboot/reload? NT4.0 and try again. What's this & how to
I fix it? I use XP Home Edition. Thanks!

"a program" needs to be better defined, please.

ANY program you try?
A particular program?