Bondi Blue iMac Flickers at Startup in 10.3

Here's a thread I made in the MacNN Forum that was largely ignored. It concerns GLOD:

Bondi Blue System Configuration:
- 233 MHz G3
- 512 MB RAM
- 40 GB HD 7200 rpm

Okay, so I upgraded my Bondi Blue's iMac hardware, as you can see. It's been suffering from the GLOD problem for a while on and off. Now it seems to have gotten horribly bad after the hardware upgrade (possibly because of the 7200 rpm HD). Anyways, before any problems occurred, I installed Panther and OS 9.2.2. Panther was running fine. But, whenever I boot up the computer, the CRT flickers (doing a resolution change, I believe) and obviously the screen turns off with the green light still on. I can boot into OS 9 just fine because I have no screen flickers then. But OS X is problematic. I was wondering if this is fixable. Because when I start-up Panther from the CD, it doesn't flicker even though it goes through a similar boot up sequence. Perhaps there is a workaround?

(I had originally posted this question in the old GLOD thread that has over 6,000 views, but I guess it got ignored)

BTW, what kind of CRT do I have to buy if I want to use an external monitor with my iMac? I'm not willing to pay up $300 for a repair (that may not be a permanent fix) on a machine I invested about $300 already for the above upgrades.

Thanks.

Hopefully the MacRumors people are more helpful.

Needed a bump. It's getting ignored and slaughtered by the rush of posts. We really need a separate troubleshooting section...

Hopefully this is the last bump this thread needs...

Does anybody know what kind of external monitor/adapter works with the Bondi Blue iMac using the internal monitor port?

I remember reading all I need is an adapter to connect the video port to an external monitor.

I think this is the adapter: This Adapter?

The plan is to leave the iMac case open, connect that adapter to the video port that would normally connect to the internal CRT's cable and attach a new monitor to the other end. Now to find an old CRT monitor, and I'm set... Correct me if I'm wrong about the monitor cable type. I can't find the exact tech specs for it.