I just received this brand new Mastech capacitor checker model 390-735 from Parts Express and the thing doesn't work. The display comes on ok but it doesn't measure any capacitors, it just stays at 000. The leads check ok. I removed the 2 screws from the rear bottom of the unit to remove the back cover but I can't get the cover off. It is stuck at the top somehow and I'm afraid of busting the plastic if I force it too much. I'm thinking the top is likely held by catches, so if anyone else has one of these meters and can advise me how to remove the back cover, maybe I'll find a bad connection or some simple reason why this thing is measuring. I hate to ship it back across the border and all. It will cost me almost as much as a new meter in shipping charges to get it back. Parts express up to date catalog, page 69. Thanks for any help. -- Gary McCartney McCartney Electronics Guelph Ontario Canada Est. 1984 email: gary (at) number63.ca ***************************************************************************** Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/