[Webtest] Default User-Agent, Frames, Javascript

[Hannes Pölz]

Hi,

i am a newbie in webtest and had a few questions.
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1.) default browser - where are the settings for the default browser. my application doesn?t work with MSIE 6.0b, if i set in the script <config the user Agent the test runs, but in the end no result.html is created.
in the error message there is no line no. 

BUILD FAILED
webtestsRunner.xml:41: The following error ocurred while executing this line:
webtestsRunner.xml:55: The following error ocurred while executing this line:
useWebTest.xml:94: input file: result.xml does not exist

if i try an other application with the config user agent the same effect, without this config the scripts works. i would like to change the default user-agent string from MSIE 6.0b to MSIE 6.0. Please let me know, where this settings are.
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2.) how can i check the text of an html in a frame. i logged into an application, and after login a frameset with 4 frames will be opened. how can i check the text of frame1 and frame4?
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3.) if there is an errors in a javascript, with has no effects to the application, how can i change my skript, that the rest of the skript is working.

many thanks in advance

regards 
Hannes Pölz