Hello all,
I recently purchased a use Virus Kb which has OS version 4.7 on it and seems to work fine. When I try to update to Version 4.8 or 4.9 something weird happens to the keys. notes fall off , don't play or get stuck on. I tried updating it several times and when I go back to OS 4.7 they work fine but when I update to 4.8 or 4.9 the same thing happens every time. Has anyone experienced this ??