Crossing sim borders - weid error

A friend of mine owns several buildings, one of these buildings is next to a sim border.
When you cross it from one way nothing happens, but when you go back again the avatar gets launched into the sky

Has this ever happend before and is there a way to stop this?

This happened to my neighbor just last night.

He was crossing the sim border in his brand new Dominus.
Somehow in the crossing, he was flung up into the air and across the sim to the far side while his car remained on his side of the sim border.

After relogging he tried it again and had no problems.

We both agreed that it was likely to be the extreme lag on the system last night.

I frequently sink into the ground when walking or driving across sim borders and while I was out on a walk along a future highway yesterday one sim refused to materailise - it was missing altogether, so I couldn't continue.

here's a slurl to the location: http://slurl.com/secondlife/Lill%20Burn%20Valley/120/5/70/

Try walking to the southeast / east into the building... we've got a grand opening coming up tommorow. So we really need this problem to be resolved

Sims sit on different servers, so when you walk across them you are actually walking in a cable between two computers.

Sometimes these cables are long and tied into knots and stuff. Techys trip over them all the time. Or the plugs of these cables are rusty and half broken and it takes time to climb over them.

This is what causes the problems. Best thing is to walk through slowly.

I hope my explanation wasn't too technical for you.