My viewer Keep crash after 1 minute inside the world.

[Rolig Loon]

I hate to say it, but those sound like classic symptoms of a graphics card that has been overheating and is getting ready to die.  I lost a graphics card several years ago with exactly the same behavior.  Second Life puts a heavy demand on a graphics card, and that generates a lot of heat, especially in a card like yours that was not designed to handle it.  Ater a few minutes, the computer tries to save itself from burning up by aborting the viewer, often after a display of very weird colors.  It might help if you open your computer's tower and blow the dust bunnies and cat hair out with a can of air periodically (I do that about once a month).  You really ought to have a free temperature monitoring program installed on your machine too.  You can find rthem easily on line.  For now, have a professional check over the card to see whether you have already had permanent damage.

For compartison, here's how your graphics card stacks up against some of the cards that many SL residents are using.  It's pretty low....

[Rolig Loon]

I hate to say it, but those sound like classic symptoms of a graphics card that has been overheating and is getting ready to die.  I lost a graphics card several years ago with exactly the same behavior.  Second Life puts a heavy demand on a graphics card, and that generates a lot of heat, especially in a card like yours that was not designed to handle it.  Ater a few minutes, the computer tries to save itself from burning up by aborting the viewer, often after a display of very weird colors.  It might help if you open your computer's tower and blow the dust bunnies and cat hair out with a can of air periodically (I do that about once a month).  You really ought to have a free temperature monitoring program installed on your machine too.  You can find rthem easily on line.  For now, have a professional check over the card to see whether you have already had permanent damage.

For compartison, here's how your graphics card stacks up against some of the cards that many SL residents are using.  It's pretty low....

[Freya Mokusei]

Agree with Rolig, it's very likely that one or more of the pieces of your machine are beginning to break down. The graphics card is a classic culprit and would not surprise me at all - especially given the colouring objects and flickering.

I did also see that your CPU temp is waaaaaay up at 77°C. This doesn't bode too well either.