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I was just wondering if this is a known bug. When I want to get basic help using the ? command before some function name, it typically works for a while, but I've noticed that after I've computed some stuff (like, around 150 or so inputs), Mathematica doesn't pull up the help, but instead just lists the attributes of the command. I'm running version 9.0.1 on OS 10.9.3, but this was also happening on an entirely different system with an older OS (10.6.8 I believe). If I restart the kernel, it works again. If I can reproduce the problem, I will post a screenshot.


Addendum. I have now been able to take a screenshot of the issue: enter image description here

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I've noted that sometimes help gets unresponsive (in my case, highlight/right-click help) and I have to try a few times. Very occasionally, it just stops working and I have to restart kernel. Perhaps related. In any case, bugs tag is for confirmed*/*reproduced (possible) bugs only - edited. –  rasher Jun 2 at 0:48
    
More often than not I use F1 (i.e. the documentation center) rather than Information. Cannot reproduce on Windows 7 V9.01. Can you reproduce it using something like Do[Information[Plot], {150}]? –  Yves Klett Jun 2 at 8:13
    
Can not reproduce on 8.0 for Linux x86 (64-bit) (October 10, 2011). –  Johu Jun 28 at 21:14
    
@Johu Thanks for the feedback. Unfortunately, this is an intermittent issue that doesn't happen very often, but it is very strange and sort of inconvenient. As you can see by the size of the In[] value, it took over 200 inputs before I observed this issue. Sometimes it takes more, sometimes less, and sometimes not at all. –  heropup Jun 28 at 21:22
    
@heropup Yes I went to 300. Maybe you could make a notebook which gives error with a high frequency and share it. –  Johu Jun 28 at 21:46

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