Relatively new monitor (< 1 mo old).

Connected to my work laptop, I have no issues.

Occasionally (maybe 4-5 times over the past three weeks), when it wakes up from sleep, the monitor flashes red/green/blue/gray (the entire monitor) and, once, it seemed to flash the same colors near the center in a smaller, blurry box.

I can solve it by working the monitor off and back on again, but is this normal behavior? Does it indicate a problem?

Thanks.