IE running under XP can't handle multiple SWF files, Why?

I noticed that IE 8 running under Windows XP cannot handle multiple swf files in one page.

Up to about 10 files is no problem they are loaded and we can play them ( buttons that start a small audio file).

But more of these files in one page will stop IE.

Firefox ( 3.6.28) runs them fine.

And also IE 8 and/or Firefox under Windows 7 handles them perfectly.

Has anyone any idea what can cause this and how to resolve this?

Thanks,

Onno Tomson

The Netherlands