Log-out problem, related to flash banners?

[globalinsites]

I started using flash banners about a week ago and I think it was about the same time when I started having problems with logging out of my site. I'm not sure if this was just before or just after I upgraded from 3.63 to 3.64 so I'm not totally sure if the log-out problem can have something to do with the upgrade. The black&white screen would just hang and after a minute or longer I would get the OK alert window. I just disabled the flash banners to see if that solves the log-out problem. After that I tested logging out a dozen times and I didn't have the problem. I use WebAdverts as banner rotating script.

This is an example of the code that I add to WebAdverts for the flash banners:

<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0" width="468" height="60">

<param name="movie" value="http://www.x.com/banners/rs468x60_autoedit.swf?linkingcode=100885&program=2&line1=WE%20ARE%20PROUD%20TO%20PRESENT&line2=IN%20ASSOCIATION%20WITH">

<param name="quality" value="high">

<param name="wmode" value="transparent">

<embed src="http://www.x.com/banners/rs468x60_autoedit.swf?linkingcode=100885&program=2&line1=WE%20ARE%20PROUD%20TO%20PRESENT&line2=IN%20ASSOCIATION%20WITH" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="468" height="60"></embed></object>

The ads displayed fine. Are there any know problems with using flash banners? Is there something in the code that could be causing problems?

Thanks.