Hey… Welcome to the forums…
Sorry you are having hassles…
Please can you include your dxdiags and in-game settings ini file… This will provide more sepcifics on your system/ drivers and what settings you are using in-game exactly.
Verifying the game files is the first thing to try as corrupted or missing game files are usually the cause of crashing so its important to do that.
Not sure what exactly you mean by changing display mode or lowering the game settings - the game has definite stability issues depending on in-game settings - e.g. playing the game with all settings on Ultra with no framerate limit is almost guaranteed to cause a crash esp. at high resolutions - newer, faster hardware simply delays the inevitable but it will eventually crash or freeze up.
These issues are all a factor of the current beta state of LE and the fact that the devs have not dediated themselves to dealing with performance issues right now.
The way to test for the graphic related stability is to temporarily set your system to 1080p, 60fps framerate limited (not vsync) and ALL in game settings to very low or disabled… If the crashes are still happening at these exact settings then its unlikely to be graphic setting related instability.
Which brings me to the next question… are you monitoring your system while playing… i.e. GPU usage & temps especially? For example, if you are not using framerate limiting, beta LE can push a GPU to 100% usage pretty easily - just opening inventory in town can get close… Obviously maxing out a GPU like this for any length of time is not ideal for thermal and stability issues and it can cause flaky things to happen when the fps spikes… It is important to monitor all components (CPU, Memory, Thermals etc) as something can provide a hint at where a potential problem could be. What is yours doing when you play?
I cannot also tell without the dxdiag, but is your OS Patched and are you using a recent graphics card driver - I say recent because the absolute newest is not always the most stable…
At the end of the dxdiag you will also see windows diagnostic info outlining all the errors that have happened recently on your system… You need to check that to see if it give any indication of what may be happening on your system and or what LE is doing… Serious errors in this section will need attention.
Are you running anything else when you are playing LE? Disable all overlays (Steam/nvidia) and temporarily disable or do not run any other applications while testing… doesnt matter if you think the app is irrelevant - temporarily not use it… There are plenty of obscure things like Citrix and Teamviewer that mess with LE so its best to just leave everything off for testing.