Its definitely a problem and you either have to fix it or change the monitor.
I have recently found a great tech support site with live free chat support that might help you solve this problem.

Here is the page for Monitor Chat Support

Good luck

Grace

Hi I had a similar problem but I recently I found a great solution in a tech support site. They have free live support therefore you can get fast personal help. I am sure you will find the solution there.

Here is the page for your printer - Canon BJC 210

Grace