Investors haven't been happy with Kimberly-Clark's (NYSE: KMB) last few earnings reports. Sure, the maker of Kleenex tissues, Huggies diapers, and other brands managed to return to sales growth last quarter. But that result still translated into flat market share year over year, while profitability worsened.The good news is that these stumbles have lowered expectations for Kimberly-Clark's second-quarter report, due out before the market opens on July 24.