Is this the PICBasic Pro compiler?

If it is, your version is so old that support for the newer PICs like the 8-pin 12F675 which I would have recommended is non-existant, quite apart from the heaps of bug fixes that have happened along the way. There's issues with 16F628 even if you build your own support files.

Invest in an upgrade, it's only a few dollars... then we can play ball, safe in the knowledge that theres a likelyhood of success.