We have a school network of about 200 computers all with MBAM 1.7.00 Free Version. We have recently encountered a problem where the application rarely opens, if it does, it gives "Database is corrupt" error and closes. We rely on Malwarebytes and ESET to handle antivirus/antimalware protection in our school. We have attempted successful reinstallation, which ends with the same result, we have tried using "MBAM Cleaner" and then reinstalling. We have tried running the updater in chameleon, and we have attempted a few other fixes found through searches. The general specs of the computers are all the same as it is only occurring in one of our labs. Specs: 30-45 GB HDD Intel Core II Duo 512mb-768mb RAM Windows XP SP 3 All of the computers are small form-factor Lenovo workstations. Any support would be greatly appreciated, results from an MBAM-Check scan are available upon request.