Upgrade from PHP5.3/PHP5.4 "SMF was unable to connect to the database"

Hi All

Yesterday my provider updated to PHP5.4 from PHP5.3 and the forum stopped working, with the permanent error message:

"Connection Problems

Sorry, SMF was unable to connect to the database. This may be caused by the server being busy. Please try again later. "

I contacted the provider who told me I needed up upgrade to a version of SMF that supports PHP5.4, therefore I upgraded from V1.1.19 to V2.0.8 but it didn't help. The provider has temporarily left PHP5.3 on my domain so that the forum continues to work but requires me to solve the issue because PHP5.3 will be removed shortly.

After reading several problems with this error message I suspect that it has nothing to do with the PHP version itself but is due to a setting that needs to be modified (location, access rights etc.) but I presently don't really know where to start looking.

Does anyone know what setting could be involved and in what file this could be located??

Regards

Mark