Have you called HPC for advice? , thier awfully friendly and will give you guidance and advice. It's always possible they may have a Techy in the area at some point as well so it's always worth dropping them a call. In the interim post specifics about what the problem is exactly, if pos with pic's and a list of what you've done to put it right. Maybe some one on her can help.
HPC1290 User HPC 3020 Owner