My SamSung SyncMaster 226BW flashes about 2 times a second for about 30 seconds when first turned on. The background (computer) image is present, but dim. After about 30 seconds it appears normal. It does this whether connected to a computer or not. I read the response to a similar problem but it was just a smart remark and not at all helpful. Three other 226BW's are working fine.

It'd sure help if I had a schematic with voltages and wave forms. This one (the one that flashes)had a new lamp installed under warranty last summer. I rarely purchase extended warranties, but in this case I did, but I'll have to check although I'm pretty sure it's now out of warranty. As far as manufacturing dates, I think they are pretty close. All came from the same store, but at different dates...maybe a couple months apart. They all get a lot of on time of around 8 to 10 hours a day...maybe more. It'd sure help if I had a schematic with voltages and wave forms. This one (the one that flashes)had a new lamp installed under warranty last summer. I rarely purchase extended warranties, but in this case I did, but I'll have to check although I'm pretty sure it's now out of warranty. As far as manufacturing dates, I think they are pretty close. All came from the same store, but at different dates...maybe a couple months apart. They all get a lot of on time of around 8 to 10 hours a day...maybe more.

rhalstead, Monitor power supply is having a hard time lighting-up the cold-cathode-fluorescent-lamps that are needed to provide raw white light on the reverse side of the glass lcd panel. You or a electronics technician will need to investigate problem down to component level to solve monitor's "iffy" lamp start-up symptom. Have you checked your warranty lately? I hope the other three have different manufacturing dates!. Were all three bought at same time, same place? Will you DIY fix or contract out the work? Post additional comment on what you are going to do. 12fixlouie rhalstead, Monitor power supply is having a hard time lighting-up the cold-cathode-fluorescent-lamps that are needed to provide raw white light on the reverse side of the glass lcd panel. You or a electronics technician will need to investigate problem down to component level to solve monitor's "iffy" lamp start-up symptom. Have you checked your warranty lately? I hope the other three have different manufacturing dates!. Were all three bought at same time, same place? Will you DIY fix or contract out the work? Post additional comment on what you are going to do. 12fixlouie