"What can cause this?" that would be your code... but where and when and how is unknown with what little you provide
- [jQuery] [autocomplete] every item shown regardless of let... foxtrot
- [jQuery] Re: every item shown regardless of letter ty... MorningZ
- [jQuery] Re: every item shown regardless of lette... foxtrot
- [jQuery] Autocomplete - every item shown regardle... foxtrot
- [jQuery] Re: Autocomplete - every item shown ... Jörn Zaefferer
- [jQuery] Re: Autocomplete - every item sh... JD
- [jQuery] Re: Autocomplete - every it... Jörn Zaefferer
- [jQuery] Re: Autocomplete - ever... JD
- [jQuery] Re: Autocomplete - ... Jörn Zaefferer