We have had the Ortho Vision installed in May and went live in September. We have had nothing but problems with ? results for the IgG cards since install. We have used different lots and can see the small "dots" or "wisps" near the bottom. The camera amplifies this and visually the cards are negative. If you over-read using an optical aid, you can detect what the camera is picking up. No resolution from support after numerous complaints. Also, since QC wouldn't pass, including previously negative patients, your only solution is installing the software upgrade. This allowed us to edit QC results just to pass QC. We should have kept the Provue made by Grifols !