Yes, and I had to eat my words to a customer after putting down someone else's work.
The ones I ran into had Electronic ballasts made Energy Savings Inc. They were running 26 watt PL lamps.
In small print on the Ballast it said it was dimming ballast, in the past the only dimming ballasts I had worked with needed 3 wires from switch to ballast, and this just had 2
I too found these on a service call, they said for couple of days the lights where blinking then same as you descibe they would turn on and off but not dim
I do not know what the fix was, the customer went back to the installer as it was new work.
[This message has been edited by iwire (edited 01-25-2003).]
Construction & Maintenance Electrician