Qt4 Debugging problem

Hi all!
Guys I'm using Qt4 on OpenSuse 11.1 with Eclipse 3.4.0.
Trying to write program which uses QGraphicsView, QGraphicsScene and QGraphicsPixmapItems.
I desperately need debugging.
I've chosen both "gdb/mi" and "gdb Debugger".
But, when I try to debug, after few minutes mesaage is displayed:

Error stopping at main.
Reason:Target request failed:Target is not responding:(timed out) .
Continue?

I don't know your exact installation but a problem of mine (which droves me crazy, till i figured out) was:

Beside my application a have a astyle executable in my folders. Because of any reason sometimes the debug modus is switching its target from my application to the mentioned astyle executable and then I get a similar error message. My bee it's a similar problem?