Could you please describe the issue with more details so we can try to help?
Were there any files detected and removed by AVG?
If so, please try to restore them as described in FAQ 4503.
In case that there were no files removed, please try to disable AVG temporarily, check if the issue persists and inform us about the results.
What do the color stripes mean on your tires?
Brian Cooley tells you why you might see various color lines on the wheels of your automobile.