My libreoffice opens very slowly odt files created in other pc

I unistalled LibreOffice 3.4 and installed version in 2 PCs (A) and (B).
When i work in PC(A) and try to select and open an odt(or other type) file created in the PC(B)with LibreOffice, it seems that Windows xp (sp3) it seems not respoding, but respods very slowly. After 2-4 minutes the file opens. Files created in the PC(A) open normaly.
In PC(B) all files open normaly.

You can first trying resetting the user profile:

Hi @tomkrem,

The behavior you’re experiencing is really bizarre!

If you grab a new build and can still reproduce this behavior, please file a bug about this problem, and provide a list of steps that can reproduce it. The QA team will be happy to help you track down this issue!

Please post a link to any bugs you file in a comment below using the format “fdo#123456”.