I discovered another solution to bypass this problem after buying a new laptop.
This laptop has an option to select which graphics processor should execute the program.
Whenever I select my nVidia card to run UnrealEd, it will crash when scrolling through the texture browser and a shader passes by.
But whenever I select my integrated graphics processor to run it, it won't crash. Luckily this processor is good enough to run older 3d-stuff like UnrealEd fast enough.
For my laptop, I can choose this option by right-clicking a (shortcut to a) program and select an option that roughly translates to "Execute with graphics processor" and then gives me the options "Powerful NVIDIA-processor (default)" and "Integrated graphics".
Similar options might be accessible from a graphics card's control panel as well.
I hope this helps other people too