VB opens second IDE in task bar

I have a large vb project... when i run the program, my VB window and my project window are in the task bar as they should..

Problem is at times (can't repeat it all the time) as I run various parts of program, another VB IDE task appears briefly in the task bar.

Has any one seen this or any idea what could cause such a thing?

I don't know if it's any related, but when I have alot of stuff open (use alot of memory) all tooltip in the vb5 IDE also appear in the task bar as running programs :)

Well I think it's xp trying to update the task bar and is just one of those flukey things