Thanks Eye. I was under the impression that it was the TDBs that were the problem. What you are suffering from is something called "Rainbow Effect". To cut a long story short the space between the characters isn't enough. They tend to merge into one, especially the smaller characters. I've been reliably informed it's being looked into with much gusto and will hopefully be sorted when NERC 2.0 happens (a small engineering joke there...). All we can do I'm afraid at the moment is keep re-setting up the bleepers.