LibreOffice not starting after fresh install on Windows XP

I use currently LibreOffice 5.0.3 without any problems. I tried installing LibreOffice 5.1, but it did not start. No error message, just the hourglass for a few seconds, then even that ceases. Repeated about 5 times.

So I uninstalled LibO 5.0.3, restarted my PC and installed 5.1 again. Same exact behaviour.

Is 5.1 compatible with Windows XP? (my Windows is fully updated, with Service Pack 3 and every released update installed)
Should I stay with 5.0.3 forever?

Thank you in advance

Try the suggested action first, then try installing from Index of /libreoffice/old/

Try deleting configuration folder at

“\Documents and Setting<user name>\Application Data\libreoffice…”

Thank you very much! It worked. I uninstalled, then removed the suggested folder, then installed PERFECT!