Hey, I keep getting problems with my cubase 4 program only after about a minute of using it, the whole program will lag for a few minutes - not the music playing or latency, just general lag with the cursor and selecting things. Also all sound will become distorted when i play the track and i have to reopen cubase for it to stop, yet sometimes it doesn't. My soundcard is an E-MU 1616m so i dont think its down to that.
However when I go into any of the VST instruments to load one onto a track it comes up with an error message about a crash and to restart cubase.

Can anyone help? It happens all the time.
Cheers,
Ollie